【蓝桥杯省赛】冲刺练习题【经典题目练习】倒计时【01】天(准考证组委会已下发，请查询)

package action;import java.util.Calendar;public class demo3 {public static void main(String[] args) {Calendar calendar = Calendar.getInstance();for (int i = 1999; i < 10000; i += 100) {calendar.set(Calendar.YEAR, i);calendar.set(Calendar.MONTH, 11);calendar.set(Calendar.DATE, 31);if (calendar.get(Calendar.DAY_OF_WEEK) == 1) {System.out.println(i);break;}}}
}

package action;import java.io.IOException;
import java.util.*;/*** java控制台2048 2022年4月3日09:35:17* 上W左A下S右D*/
public class demo {public static final int X = 4;public static final int Y = 4;public static int model[][] = new int[X][Y];public static int step = 0;public static boolean gameover = false;public static int enumM[] = { 2, 2, 2, 2, 4, 4, 4, 8 };public static void main(String[] args){Random ra=new Random();int randomX, randomY;randomX = ra.nextInt(X);randomY = ra.nextInt(model[randomX].length);model[randomX][randomY] = 2;randomX = ra.nextInt(X);randomY = ra.nextInt(model[randomX].length);model[randomX][randomY] = 2;randomX = ra.nextInt(X);randomY = ra.nextInt(model[randomX].length);model[randomX][randomY] = 4;randomX = ra.nextInt(X);randomY = ra.nextInt(model[randomX].length);model[randomX][randomY] = 2048;outPrint();while (!gameover) {int read;try {read = System.in.read();change(read);} catch (IOException e) {e.printStackTrace();}}}public static void outPrint() {for (int i = 0; i < X; i++) {for (int j = 0; j < Y; j++) {System.out.print("【");if (model[i][j] == 0) {System.out.print("    ");}if (model[i][j] > 0 && model[i][j] < 9) {System.out.print("  " + model[i][j] + " ");}if (model[i][j] > 9 && model[i][j] < 100) {System.out.print(" " + model[i][j] + " ");}if (model[i][j] > 99 && model[i][j] < 1000) {System.out.print(" " + model[i][j]);}if (model[i][j] > 999) {System.out.print(model[i][j]);}System.out.print("】");}System.out.println();}}public static void change(int dir) {switch (dir) {case 115:// S 下int[] xp4 = new int[Y];for (int i = 0; i < Y; i++) {boolean goon = true;while (goon) {int[] temp = new int[X];int tempIdex = X - 1;for (int j = X - 1; j >= 0; j--) {if (model[j][i] != 0) {temp[tempIdex--] = model[j][i];}}boolean hv = false;for (int j = X - 1; j > 0; j--) {if (temp[j] == temp[j - 1] && temp[j] != 0) {temp[j] = temp[j] * 2;temp[j - 1] = 0;hv = true;}}goon = hv;int is0 = 0;for (int j = X - 1; j >= 0; j--) {model[j][i] = temp[j];if (temp[j] == 0)is0++;}if (is0 > 0) {xp4[i] = 1;// 可插牌}}}// 插牌List<Integer> space4 = new ArrayList<Integer>();for (int j = 0; j < xp4.length; j++) {if (xp4[j] == 1) {space4.add(j);}}if (space4.size() == 0) {gameover = true;System.out.println("game over");System.exit(0);} else {int a = (int) (Math.random() * (space4.size()));Integer index = space4.get(a);for (int j = X - 1; j >= 0; j--) {if (model[j][index] == 0) {model[j][index] = enumM[(int) (Math.random() * enumM.length)];break;}}}outPrint();break;case 100:// D 右int[] xp = new int[X];for (int i = 0; i < X; i++) {boolean goon = true;while (goon) {int[] temp = new int[Y];int tempIdex = Y - 1;// 去空for (int j = Y - 1; j >= 0; j--) {if (model[i][j] != 0) {temp[tempIdex--] = model[i][j];}}boolean hv = false;// 合并for (int j = 0; j < Y - 1; j++) {if (temp[j] == temp[j + 1] && temp[j] != 0) {temp[j] = temp[j] * 2;temp[j + 1] = 0;hv = true;}}goon = hv;int is0 = 0;for (int j = 0; j < Y; j++) {model[i][j] = temp[j];if (temp[j] == 0)is0++;}if (is0 > 0) {xp[i] = 1;// 可插牌}}}// 插牌List<Integer> space = new ArrayList<Integer>();for (int j = 0; j < xp.length; j++) {if (xp[j] == 1) {space.add(j);}}if (space.size() == 0) {gameover = true;System.out.println("game over");System.exit(0);} else {int a = (int) (Math.random() * (space.size()));Integer index = space.get(a);for (int j = Y - 1; j >= 0; j--) {if (model[index][j] == 0) {model[index][j] = enumM[(int) (Math.random() * enumM.length)];break;}}}outPrint();break;case 119:// W 上int[] xp3 = new int[Y];for (int i = 0; i < Y; i++) {boolean goon = true;while (goon) {int[] temp = new int[X];int tempIdex = 0;for (int j = 0; j < X; j++) {if (model[j][i] != 0) {temp[tempIdex++] = model[j][i];}}boolean hv = false;for (int j = 0; j < X - 1; j++) {if (temp[j] == temp[j + 1] && temp[j] != 0) {temp[j] = temp[j] * 2;temp[j + 1] = 0;hv = true;}}goon = hv;int is0 = 0;for (int j = 0; j < X; j++) {model[j][i] = temp[j];if (temp[j] == 0)is0++;}if (is0 > 0) {xp3[i] = 1;// 可插牌}}}// 插牌List<Integer> space3 = new ArrayList<Integer>();for (int j = 0; j < xp3.length; j++) {if (xp3[j] == 1) {space3.add(j);}}if (space3.size() == 0) {gameover = true;System.out.println("game over");System.exit(0);} else {int a = (int) (Math.random() * (space3.size()));Integer index = space3.get(a);for (int j = 0; j < X; j++) {if (model[j][index] == 0) {model[j][index] = enumM[(int) (Math.random() * enumM.length)];break;}}}outPrint();break;case 97:// A 左int[] xp2 = new int[X];for (int i = 0; i < X; i++) {boolean goon = true;while (goon) {int[] temp = new int[Y];int tempIdex = 0;for (int j = 0; j < Y; j++) {if (model[i][j] != 0) {temp[tempIdex++] = model[i][j];}}boolean hv = false;for (int j = 0; j < Y - 1; j++) {if (temp[j] == temp[j + 1] && temp[j] != 0) {temp[j] = temp[j] * 2;temp[j + 1] = 0;hv = true;}}goon = hv;int is0 = 0;for (int j = 0; j < Y; j++) {model[i][j] = temp[j];if (temp[j] == 0)is0++;}if (is0 > 0) {xp2[i] = 1;// 可插牌}}}// 插牌List<Integer> space2 = new ArrayList<Integer>();for (int j = 0; j < xp2.length; j++) {if (xp2[j] == 1) {space2.add(j);}}if (space2.size() == 0) {gameover = true;System.out.println("game over");System.exit(0);} else {int a = (int) (Math.random() * (space2.size()));Integer index = space2.get(a);for (int j = 0; j < Y; j++) {if (model[index][j] == 0) {model[index][j] = enumM[(int) (Math.random() * enumM.length)];break;}}}outPrint();break;default:break;}}}